Egami, the Japanese photography blog has discovered a new Canon patent for an EF 10mm f/2.8 USM lens. Canon already has a very wide zoom lens, the EF 8-15mm f/4L but this new patent is a prime, non fish-eye lens.
Patent Publication No. 2015-102620
- Published 2015.6.4
- Filing date 2013.11.22
Example 3
- Focal length f = 10.30mm
- Fno. 2.88
- Half angle of view ? = 64.54 °
- Image height 21.64mm
- Lens length 124.58mm
- BF 38.00mm
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